665055004 has 12 divisors (see below), whose sum is σ = 1164369024. Its totient is φ = 332378144.

The previous prime is 665054993. The next prime is 665055019. The reversal of 665055004 is 400550566.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27004 + ... + 45379.

It is an arithmetic number, because the mean of its divisors is an integer number (97030752).

Almost surely, 2^665055004 is an apocalyptic number.

It is an amenable number.

665055004 is a deficient number, since it is larger than the sum of its proper divisors (499314020).

665055004 is a wasteful number, since it uses less digits than its factorization.

665055004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74684 (or 74682 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 665055004 is about 25788.6603762196. The cubic root of 665055004 is about 872.8759381907.

The spelling of 665055004 in words is "six hundred sixty-five million, fifty-five thousand, four".